Major delays plague M5 East tunnel

Ben Grubb

Traffic at about 4pm on King Georges Road. Photo: Supplied

An overheight truck has damaged the M5 East tunnel, causing citybound traffic to queue back more than five kilometres.

All citybound lanes of the M5 East will remain closed overnight from King Georges Road to Marsh Street after the truck damaged the main tunnel and Cooks River Tunnel, the NSW Transport Management Centre said.

The Cooks River Tunnel has reopened but the main tunnel remains damaged.

The transport centre said traffic on these roads was extremely heavy and that motorists would face significant delays.

Citybound buses through the area are also about 75 minutes late, it said.

Meanwhile, motorists travelling west on the M5 are also facing significant delays after a pedestrian accident at Revesby, which caused one of the two westbound lanes to close approaching River Road. The lane has now been reopened but emergency services remain on site.